Which is part of why the MCU is awesome: no overblown antimutant paranoia.

Anyway, as for the issue of "mutants as other", the problem I've always had with it is that mutants have *no* common origin or culture. It seems far more likely that mutants would end up falling into existing cultural/ethnic categories, at least initially. You won't have white bigots and black bigots holding hands and singing "lynch all the mutants" songs. You'd have white bigots hating those dirty black mutants, and black bigots hating those evil white mutants. And so on and so forth.

The "mutants will replace us!" paranoia is at least comprehensible, if nonsensical ( its like worrying that you will be replaced by. . . your children ).

Here I disagree in that fear of mutants has nothing to do with a shared culture or ethnicity and everything to do with the fact that they have dangerous powers that people find threatening. Mutants aren't our children, they are potentially our replacements in evolutionary terms. Were mutants to follow the same path as previous newly-evolved primate species, they would eventually supplant humanity altogether, just as humans superseded Neanderthals.

The prospect of eventual human extinction, which is the goal of some very powerful mutants, coupled with the fact that so many of them possess powers that threaten harm to others, perfectly explains why anti-mutant hysteria might take hold in society. While most mutants tried to blend in and live normal lives (at least until Bendis slaughtered 99% of them), Magneto and some others have repeatedly tried to wipe out humanity. Others have caused death and destruction as well. Most people would naturally react negatively to a group like that.